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<h1 class="topictitle1">约束与限制</h1>
<div><p>副本复制的相关约束限制如下。</p>
<ul><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li798152116245">复制副本不支持任意时间点恢复。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li0419847142210">复制副本不支持恢复到原位置。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li36651422476">反向复制副本不支持再复制和归档。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li540811092211">复制副本不支持全局检索。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li5884102815018">级联复制最多不超过3级。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li3346135516017">1.3.0及之后版本不支持与1.2.1版本进行复制。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li9671182934116">复制副本主端、从端WORM属性一致。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li7890156204416">复制任务限速针对待复制副本所在的整个文件系统生效。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li81813443435">域内复制副本不支持反向复制和级联复制。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li5391133835111">日志备份副本不支持复制。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li87635328271">OceanProtect X系列备份一体机不支持复制到OceanProtect E1000。</li><li id="tdsql_gud_019__zh-cn_topic_0000001792503802_li178116190314">OceanProtect E1000不支持复制到备份存储为服务器的OceanProtect E1000。</li></ul>
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